Faceplate-attaching means for locks



Jan. 5

H. K. MRVE'X ET L FACEPLATE ATTAGNNG MEwS FOR LOCKS Filed March '27,

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Patented Jan. 5, 1926.

UNITED STATES PATENT OFFICE HAROLD K. MORITZ AND FRANKLIN H. HARP, OFSEATTLE, WASHINGTONAS- SIGNORS TOT` FRANK E. BEST, INC., OF SEATTLE,WASHINGTON, A CORPORATION 0F WASHINGTON.

l FACEPLATE-ATTACHING MEANS FOR LOCKS.

Application led March 27, 1924.

To all whom t may conoci-a.'

Be it known that we, HAROLD K. Monrrz and FRAM-HAN H. Ham', citizens ofthe United States, residing` at Seattle, in the county ot King and Stateot IVashiugton,

have invented a new and useful Improves,

provide improved and simplified means for` attaching the face plate of alock to a lock core.

A more specific object is to provide a lock core and face plate in whichthe face plate is rigidly and non-rotatably secured to the lock core bya removable key plug and by a pin or projection on either the face plateor the core member which fits into a recess in the other member, the keyplug and pin acting jointly, the key plug preventing removal of the faceplate and the pin functioning chiefly to prevent rotary movement of theface plate relative to the lock core.

Other and more specific objects will be apparent from the Jfollowingdescription taken in connection with the accompanying drawings In thedrawings Figure 1 is a view in perspective with parts broken away of anassembled core and face plate constructed in accordance with ourinvention.

Fig. 2 is a view partly in side elevation and partly in cross section ofthe same.

Fig. 3 is a view partly in side elevation and partly in section of ourface plate.

Fig. 4t is a view in elevation of the front end of a lock core to whichthis face plate is adapted to be applied.

Fig. 5 is a view in end elevation of a modified form o1" lock corehaving two recesses -for the reception of two pins instead of one.

Fig. 6 is a view in side elevation of a lock core, showing theprojection or pin on the core instead of on the face plate.

Fig. 7 is a view in end elevation of thevcore shown in Fig. 6.

Fig. 8 is a view in elevation of the inner side of a face plate adaptedto be used on the core shown in Fig. 6.

Fig. 9 is a View partly in section and Serial No. 702,325.

partly inside elevation of the face pla-te shown in Fig. 8.

Like reference numerals designate like parts throughout theseveralviews.-

Referring to Figs. 1 to it inclusive` the numeral l() designates a. lockcore having a longitudinal bore :for the reception oit a key plug 11 andhaving relatively small transverse bores 12, shown by dotted lines inFigs. 2 and 4, for the reception of tumbler pins of well known form. Thelock core 10 is adapted to fit within a suitable receptacle or housing,not shown, and is provided on the forward end with a face plate 13through which the key lplug 11 eiitends when the lock is assembled thekey plug 11 being provided with a cylindrical head or flange 14- thatrests within a cylindrical groove 15 in the face plate. A key stop 16 issecured to the inner end of the key plug and prevents removal of saidkey plug from the core.

In accordance with our invention we provide in the front end of thecore, a recess 17 that is offset to one side of the tumbler pin recessesand that is arranged to receive a projection or pin 1S on the innersurface of the face plate 13. The pin 18 may be separable from the faceplate 13 as shown or it may be integral therewith and said` pin may, ifdesired, be pressed tightly into a recess in the face plate and may bearranged to be pressed tightly into the recess 17 in the end of thecore, or said pin may fit loosely into one or both of said recesses.

If desired, two holes 17 may be provided in the end of the core 11 asshown in Fig. 5 and two pins 1S may be provided in connection with the:face plate 13 to lit into said holes, the holes 17 being on oppositesides of the bores 12 in which the tumbler pins are disposed.

In Figs. 6, 7, 8 and 9 wc show a core 20 having a pin 21 on the endthereof that is adapted to fit into a recess 22 in a'- ace plate 23. Thepin 21 may be integral with and positioned in the medial plane of thecore, it being obvious that said pin does not interfere with the tumblerpins in the core.

In the structure shown in Figs. 1 to 5 the' tumbler pins of the lockmake it necessary to offset the recesses 17 to one side of the centralplane of' the lock and thereby limit the size of the pins 18 that may beused. In

the structure shown in Figs. 6 to 9 inclusive the pin 2l may be as largeas desired but the length or' said pin is limited by the thiol;- ness otthe laee plate 23.

lVe are familiar with locks or" this nature in which the face plate andlock core are secured together by a tongue and groove or mortise i'iormel' connection but we find that our form of Connection hereinbeforedescribed is much more simple and cheap to construct and ai'ords all oilthe strength required in securing means ol this nature.

The foregoing description and aecompanying drawings Clearly disclosewhat We now regard as a preferred embodiment of said lock core.

HAROLD K. MORITZ. FRANKLIN H'. HARP.

